Uji Kekerasan Functionally Graded Materials Berbasis Aluminium Titanat dengan Penstabil MgO

FAUZI, AH.SULHAN and ISTIQLALIYAH, HESTI (2018) Uji Kekerasan Functionally Graded Materials Berbasis Aluminium Titanat dengan Penstabil MgO. JPSE (Journal of Physical Science and Engineering), 3 (1). pp. 32-37. ISSN 2541-2484

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Abstract

This research was conducted to find out the hardness characteristic of functionally graded materials based on aluminium titanat and stabilized by magnesium oxide (FGMs-ATM) made by recurrent infiltration method. The hardness test was conducted in uniaxial direction to compare hardness value of sample with load variation from 0.2 until 1 N. To form FGMsATMs, the samples were sintered at 1550 °C, as comparable were the sintered FGMs at a temperature of 1450 °C. The hardness analysis result with Vickers Hardness test showed hardness value of FGMs-ATM fluctuative to variation of load between 0.2 N to 1 N, that is 64.55 HV at the lowest loading 0.5 N and highest 118.6 HV at highest loading 1 N. The fluctuation of the hardness value to the given load variation shows the FGMs-ATM sample approaching brittle properties. While the increasing in sinter temperature further decreases the brittleness.

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